This is day 4. We have 19 full days left. Today we drove from Wisconsin to Minnesota to South Dakota. It was very hot in South Dakota but it cooled down at night. we drove up to Mount Rushmore. We sat there for a while waiting for the sculpture illumination to start. When it finally started it was cool. They played a video about all the presidents that were in the sculpture. Then the park ranger told us how to leave after it was over. And then they lit up the sculpture.